Two-storey extensions in Lee
Homeowners in Lee can use us for the whole project or just the drawings and approvals. Start with a free visit.
Lee at a glance
- Postcode districts
- SE13
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Blackheath (0.6 miles), Ladywell (1.2 miles), Kidbrooke (1.2 miles), Catford (1.3 miles)
- Approvals
- Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Side, wraparound and front: planning permission.
We cover postcode district SE13 in and around Lee, along with neighbouring Blackheath, Ladywell and Kidbrooke.
Extensions available in Lee
Two-storey rear extensions
For homes in Lee: typical guide from £67,000.
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Two-storey side extensions
From £103,500 in Lee. Free visit to firm it up.
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Two-storey wraparound extensions
For homes in Lee: typical guide from £144,500.
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Part single, part two-storey extensions
Our London guide starts at £86,500 for this type.
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Extensions over a garage
Guide from £38,000 in Lee, including VAT.
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First-floor extensions
Guide from £30,000 in Lee, including VAT.
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Two-storey extensions for semi-detached houses
From £67,000 in Lee. Free visit to firm it up.
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Two-storey extensions for detached houses
Design, approvals and build for Lee homes. Guide from £103,500.
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Kitchen extensions with bedrooms above
From £67,000 (before kitchen units) in Lee. Free visit to firm it up.
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Extra bedroom and en-suite extensions
Design, approvals and build for Lee homes. Guide from £67,000 (plus en-suite).
Learn moreWhich type suits your house?
The boundaries usually decide it. Two-storey work close to a neighbour needs careful design for light and privacy, so at the visit in Lee we measure distances to every boundary before suggesting a type.
Also available in Greater London
- Two-storey front extensions
- Two-storey extensions for end-of-terrace houses
- Two-storey annexe extensions
- Garage conversions with a room above
- Two-storey extension plans and drawings
- Planning permission for two-storey extensions
- Structural engineering for two-storey extensions
- Building regulations for two-storey extensions
- Party wall notices for extensions
- Design and build two-storey extensions
Rules for Lee
Lee is in England. Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Side, wraparound and front: planning permission. Householder planning application: £548 (or £575 for applications made from 8 December 2026). Lawful development certificate: £274 (about £288 for applications from 8 December 2026). Councils should decide householder applications within 8 weeks of validation.
The full England rules explained
Questions about extensions in Lee
Do you cover Lee?
Yes. We cover Lee (SE13) and the surrounding area, including Blackheath and Ladywell. The first site visit is free.
What does a two-storey extension cost in Lee?
Using our London guide, a two-storey rear extension with a 4 m × 3.5 m footprint on two floors (28 m² of new floor space) is about £67,000–£90,500 including VAT. An extension over a garage is about £38,000–£55,000.
Which other places near Lee do you cover?
Everywhere around it, including Blackheath (0.6 miles), Ladywell (1.2 miles) and Kidbrooke (1.2 miles), and the rest of Greater London.